公开(公告)号：US20230383471A1

公开(公告)日：2023-11-30

申请号：US18333353

申请日：2023-06-12

申请人： MERCER INTERNATIONAL INC

发明人： Tobias Ziegenbein

IPC分类号： D21H27/30 ,  D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/00 ,  D21F11/14 ,  D21H11/02 ,  D21H17/44 ,  D21H21/20 ,  B32B29/00

CPC分类号： D21H27/30 ,  D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/002 ,  D21F11/14 ,  D21H11/02 ,  D21H17/44 ,  D21H21/20 ,  D21H27/005 ,  B32B29/005 ,  B32B2250/02 ,  B32B2307/54 ,  B32B2317/12 ,  B32B2554/00

摘要： A differential density absorbent towel paper product comprising at least one absorbent towel paper web is disclosed. The absorbent towel paper web has: (a) from about 20% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof and, (c) not more than about 10% by weight moisture. The refined soft wood pulp fiber mixture has: i) from about 18.5% to about 88.5% by weight of soft wood pulp fiber; ii) from about 0.25% to about 5.0% by of cationic strengthening polymer; and, iii) from about 0.05% to about 20% by weight of cellulose nano-filaments.

公开(公告)号：US20230313467A1

公开(公告)日：2023-10-05

申请号：US18004445

申请日：2021-07-07

申请人： ECOLAB USA INC.

发明人： David Steven JORDAN ,  Heqing HUANG ,  Weiguo CHENG ,  Mingli WEI ,  Mei LIU ,  William Arthur GRANGER

IPC分类号： D21H21/18 ,  D21H23/28 ,  D21H17/42 ,  D21H23/50 ,  D21H27/30 ,  D21H17/44

CPC分类号： D21H21/18 ,  D21H17/42 ,  D21H17/44 ,  D21H23/28 ,  D21H23/50 ,  D21H27/30

摘要： The present disclosure provides methods and compositions for strengthening paper. The methods may include a step of spraying an anionic polymer onto a paper sheet to increase the strength of the paper sheet. The anionic polymer may have amino groups, amide groups, or a combination of amino groups and amide groups. These groups may be functionalized with an aldehyde. Methods may also include a step of adding a wet end composition to a wet end of the papermaking process.

公开(公告)号：US20230071350A1

公开(公告)日：2023-03-09

申请号：US17823115

申请日：2022-08-30

申请人： SOLENIS TECHNOLOGIES, L.P.

发明人： Davit Edward Sharoyan ,  Daniel Joseph Nicholson

IPC分类号： D21H21/02 ,  D21H17/44 ,  D21H17/21 ,  D21H17/37 ,  D21H17/65

摘要： A method of reducing contaminants in a pulp or papermaking process includes the steps of: providing a lignocellulosic pulp comprising lignocellulosic fibers and at least one hydrophobic contaminant; providing a cationic polymer; providing a cleaning blend comprising a vegetable oil alkyl ester and at least one surfactant; and applying the cationic polymer and the cleaning blend to the lignocellulosic pulp to reduce a content of the at least one hydrophobic contaminant in the pulp or papermaking process.

公开(公告)号：US20200332472A1

公开(公告)日：2020-10-22

申请号：US16865950

申请日：2020-05-04

申请人： Mercer International Inc.

发明人： Tobias Ziegenbein

IPC分类号： D21H27/30 ,  D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/00 ,  D21F11/14 ,  D21H11/02 ,  D21H17/44 ,  D21H21/20 ,  B32B29/00

摘要： A differential density paper product comprising at least one paper web is disclosed. The paper product has: (a) from about 20% to about 90% by weight of the dry fiber basis of the paper product of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof; and, (c) not more than about 10% by weight moisture.

公开(公告)号：US10301777B2

公开(公告)日：2019-05-28

申请号：US15634615

申请日：2017-06-27

申请人： ECOLAB USA INC.

发明人： Cornel Hagiopol ,  David F. Townsend ,  Clay E. Ringold ,  James W. Johnston

IPC分类号： C08L77/00 ,  D21H21/20 ,  D21H17/55 ,  D21H17/40 ,  C08G73/02 ,  D21H17/44 ,  D21H17/45 ,  C09D125/08 ,  C08L25/08 ,  D21H17/00

摘要： Wet strengthened fiber products, wet strengthening resins, and methods for making such wet strengthened fiber products and wet strengthening resins. The wet strengthened fiber product can include a fiber web and an at least partially cured wet strengthening resin, which prior to at least partially curing, the wet strengthening resin can include a polyamide-epihalohydrin (PAE) resin and a cationic styrene maleimide (SMI) resin. The PAE resin can include a reaction product of a polyamidoamine and an epihalohydrin and the cationic SMI resin can include a reaction product of a styrene maleic anhydride (SMA) copolymer and an amine. The wet strengthened fiber product can include the wet strengthening resin in an amount of about 0.05 wt % to about 5 wt %, based on a dried weight of the wet strengthened fiber product.

公开(公告)号：US10023998B2

公开(公告)日：2018-07-17

申请号：US12599219

申请日：2008-05-28

申请人： Henri Rosset

发明人： Henri Rosset

IPC分类号： D21H11/00 ,  D21H13/00 ,  D21H15/00 ,  D21H17/00 ,  D21H19/00 ,  D21H21/00 ,  D21H23/00 ,  D21H25/00 ,  D21H27/00 ,  B44F11/00 ,  D21F11/00 ,  B42D1/00 ,  B42D19/00 ,  B42D15/00 ,  D21H21/40 ,  D21H17/42 ,  D21H17/43 ,  D21H17/44 ,  D21H21/18 ,  D21H21/20

CPC分类号： D21H21/40 ,  D21H17/42 ,  D21H17/43 ,  D21H17/44 ,  D21H21/18 ,  D21H21/20

摘要： The present invention relates to a crumple-resistant security sheet comprising fibers; an anionic polymer in a proportion lying in the range 5% to 45% by dry weight relative to the total dry weight of the fibers, and presenting a glass transition temperature greater than 40° C.; and a main cationic flocculation agent in a quantity lying in the range 1% to 5% by dry weight relative to the total dry weight of the fibers.

公开(公告)号：US09404223B2

公开(公告)日：2016-08-02

申请号：US14373174

申请日：2013-01-31

申请人： BASF SE

发明人： Christopher Alan Gray ,  Antonius Moormann-Schmitz ,  Hubert Meixner ,  Luis Miguel Sanchez Cerro ,  Christian Jehn-Rendu ,  Thomas Muehlenbernd

IPC分类号： D21H17/44 ,  D21H17/45 ,  D21H21/10 ,  D21H17/37 ,  D21H27/30 ,  D21H17/00 ,  D21H17/36 ,  D21H17/56 ,  D21H23/26

CPC分类号： D21H27/30 ,  D21H17/36 ,  D21H17/375 ,  D21H17/56 ,  D21H17/74 ,  D21H21/10 ,  D21H23/26

摘要： The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of at least 3 mEq per gram and a molar mass of greater than 700,000 Da, b) a cationic polymer having a charge density of below 3 mEq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage.

摘要翻译： 制造纸或纸板的方法本发明涉及一种制造纸或纸板的方法，其中提供纤维素薄料并经受一个或多个剪切阶段，然后排干，并移动筛网以形成干燥的片材，其中该方法采用保留系统 所述保留系统包括作为组分的i）不同阳离子聚合物的共混物和ii）微粒材料，其中阳离子聚合物的共混物包含：a）具有至少电荷密度的阳离子聚合物 3mEq /克，摩尔质量大于700,000Da，b）电荷密度低于3mEq /克，特性粘度至少为3dl / g的阳离子聚合物，其中保留体系中的一种成分 在最终的剪切阶段之后，被稀释到稀薄的坯料中，另一个在最终的剪切阶段之前被加入稀薄的原料中。

公开(公告)号：US09206551B2

公开(公告)日：2015-12-08

申请号：US14105259

申请日：2013-12-13

申请人： BASF SE

发明人： Anton Esser

IPC分类号： D21H17/25 ,  D21H17/45 ,  D21H21/18 ,  D21H17/37 ,  D21H17/42 ,  D21H17/44

CPC分类号： D21H17/37 ,  D21H17/42 ,  D21H17/44 ,  D21H21/18

摘要： Process for the production of paper, board and cardboard having high dry strength by addition of an aqueous composition comprising a nanocellulose and at least one polymer selected from the group consisting of the anionic polymers and water-soluble cationic polymers, draining of the paper stock and drying of the paper products.

摘要翻译： 通过加入包含纳米纤维素和至少一种选自阴离子聚合物和水溶性阳离子聚合物的聚合物的水性组合物来生产具有高干燥强度的纸，纸板和纸板的方法，排出纸料和 干燥纸制品。

公开(公告)号：US08846772B2

公开(公告)日：2014-09-30

申请号：US12663407

申请日：2008-06-04

申请人： Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlén

发明人： Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlén

IPC分类号： C04B14/04 ,  D21H21/10 ,  D21H17/68 ,  C01B33/149 ,  C01B33/143 ,  D21H17/37 ,  D21H17/42 ,  D21H23/04 ,  D21H17/44

CPC分类号： D21H17/74 ,  C01B33/1435 ,  C01B33/149 ,  D21H17/375 ,  D21H17/42 ,  D21H17/44 ,  D21H17/68 ,  D21H21/10 ,  D21H23/04

摘要： The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g. The invention further relates to a process for producing the aqueous silica-based sol according to the invention, a sol containing silica-based particles obtainable by the process, use of the sol containing silica-based particles as a flocculating agent. The invention further relates to a process for producing paper in which the sol containing silica-based particles is used as a drainage and retention aid.

摘要翻译： 本发明涉及含有至少约10的轴比和至少约600m 2 / g的比表面积的二氧化硅基颗粒的溶胶。 本发明还涉及一种含有轴比为至少约10，S值至多约25的二氧化硅基颗粒的溶胶。本发明还涉及含有至少约 10，比表面积为至少约400m2 / g，其中二氧化硅基颗粒被表面改性。 本发明还涉及含有二氧化硅基颗粒的溶胶，所述颗粒具有至少50cP的粘度和至少约3重量％的二氧化硅含量，其中所述二氧化硅基颗粒的比表面积为至少约400m 2 / G。 本发明还涉及本发明的水性二氧化硅系溶胶的制造方法，含有二氧化硅系颗粒的溶胶，该方法可以使用含有二氧化硅系粒子的溶胶作为絮凝剂。 本发明还涉及一种生产纸的方法，其中含有二氧化硅基颗粒的溶胶用作排水和助留剂。

公开(公告)号：US08802132B2

公开(公告)日：2014-08-12

申请号：US13522735

申请日：2011-01-18

申请人： Marie-Hélène Charest ,  Jean-Francois Samuel ,  Pascal Allard ,  Régis Arsenault ,  Charles Beaulne ,  Jean-Marc Bouchard ,  Benoît Graton ,  Gabriel Sanapo

发明人： Marie-Hélène Charest ,  Jean-Francois Samuel ,  Pascal Allard ,  Régis Arsenault ,  Charles Beaulne ,  Jean-Marc Bouchard ,  Benoît Graton ,  Gabriel Sanapo

IPC分类号： A61K9/70 ,  A61F13/00 ,  D21H21/36 ,  A61L15/28 ,  A61L15/44 ,  A61L15/46 ,  A01N33/12 ,  A01N25/34 ,  D21H17/44 ,  D21H21/24 ,  D21H27/00

CPC分类号： A01N25/34 ,  A01N33/12 ,  A61L15/28 ,  A61L15/44 ,  A61L15/46 ,  A61L2300/204 ,  A61L2300/208 ,  A61L2300/404 ,  A61L2300/406 ,  A61L2300/408 ,  A61L2300/802 ,  D21H17/44 ,  D21H21/24 ,  D21H21/36 ,  D21H27/002 ,  A01N25/10 ,  A01N47/44 ,  C08L1/02

摘要： An antimicrobial paper includes a paper web having a grammage between 10 and 60 grams per square meter, a cationizing agent in a concentration ranging between 0.05 wt % and 5 wt %, an antimicrobial agent in a concentration ranging between 0.01 wt % and 3 wt %, the antimicrobial agent and the cationizing agent being added on the paper web having a consistency above 15 wt %, the antimicrobial paper having an antimicrobial agent release of above about 0.01 wt % when wetted.

摘要翻译： 抗微生物纸包括具有10至60克/平方米的克重的纸幅，浓度范围为0.05重量％至5重量％的阳离子化剂，浓度范围为0.01重量％至3重量％的抗微生物剂， ，抗微生物剂和阳离子化剂被加入到具有15重量％以上的浓度的纸幅上时，抗微生物纸在润湿时具有高于约0.01重量％的抗微生物剂释放。